Home / 300,156.20-450,080.40-89,766.80

Finding the Fourth Proportional to 300,156.20, 450,080.40 and 89,766.80

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Solution

The fourth proportional to 300,156.20, 450,080.40 and 89,766.80 is: 134,604.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,156.20 : 450,080.40 = 89,766.80 : x
  2. Step 2: Convert to fraction form
    300,156.20/450,080.40 = 89,766.80/x
  3. Step 3: Cross multiply
    300,156.20x = 450,080.40 × 89,766.80
  4. Step 4: Simplify right side
    300,156.20x = 40,402,277,250.72
  5. Step 5: Solve for x
    x = 40,402,277,250.72/300,156.20
  6. Step 6: Final answer
    x = 134,604.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.